Look, I consider myself a pretty progressive person. I'm all for gay/trans rights/marriage etc and if any adult female or male decides that they are one instead of the other, or something else entirely, I can respect that and fully support their right to live and function in our society without judgement or persecution for feeling that way.
That being said, this is just creepy. This is not teaching "tolerance." There are plenty of ways to teach kids tolerance and empathy for others without causing them confusion about their own gender/sexual identity before they are even old enough to learn about the birds and the bees. Do the people who support this stuff not have children of their own? The idea of promoting this stuff to 5+ year olds is astounding to me. My girlfriend's 5 yr old daughter just in the last week has been a T-rex, a unicorn, a puppy, then Sonic the Hedgehog because she watched the movie and became obsessed with it, a salamander, something else I'm probably forgetting...
...these are kids we are talking about. If they grow up to be transgender adults, so be it. When they are old enough to choose that for themselves, I'm all for it. Do you. But there are no trans-gender 5 year olds. Full stop, and I'll die on that hill. There's just kids being wild, imaginative, innocent kids - who unfortunately in many cases have enabling, weirdo, creepy parents who think if the fantasy involves being another gender that it should be fully embraced and promoted and it's time to start the hormone injections.
There is nothing to be gained by teaching kids to question their "gender"- whatever the current revised definition of that word may be at the moment.